CN115160679A - Radiation-proof polymer composite material and preparation method thereof - Google Patents
Radiation-proof polymer composite material and preparation method thereof Download PDFInfo
- Publication number
- CN115160679A CN115160679A CN202211013264.1A CN202211013264A CN115160679A CN 115160679 A CN115160679 A CN 115160679A CN 202211013264 A CN202211013264 A CN 202211013264A CN 115160679 A CN115160679 A CN 115160679A
- Authority
- CN
- China
- Prior art keywords
- radiation
- parts
- composite material
- foaming
- polymer composite
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/04—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent
- C08J9/06—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a chemical blowing agent
- C08J9/10—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a chemical blowing agent developing nitrogen, the blowing agent being a compound containing a nitrogen-to-nitrogen bond
- C08J9/102—Azo-compounds
- C08J9/103—Azodicarbonamide
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/0014—Use of organic additives
- C08J9/0023—Use of organic additives containing oxygen
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/0066—Use of inorganic compounding ingredients
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/0085—Use of fibrous compounding ingredients
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/0095—Mixtures of at least two compounding ingredients belonging to different one-dot groups
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2203/00—Foams characterized by the expanding agent
- C08J2203/04—N2 releasing, ex azodicarbonamide or nitroso compound
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2323/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
- C08J2323/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
- C08J2323/04—Homopolymers or copolymers of ethene
- C08J2323/06—Polyethene
Abstract
The invention discloses a radiation-proof polymer composite material, which belongs to the technical field of radiation-proof materials and comprises the following components in parts by weight: polyethylene, azodicarbonamide, barium sulfate, zinc oxide, dicumyl peroxide, stearic acid, and silver. The radiation-proof polymer composite material does not contain toxic heavy metal compounds, is a safe radiation-proof material, and has the advantages of low cost, easy popularization and simple preparation process.
Description
Technical Field
The invention belongs to the technical field of radiation-proof materials, and particularly relates to a radiation-proof polymer composite material and a preparation method thereof.
Background
Long-term irradiation of various rays is an important cause of deterioration of polymer products, and thus it is very important to improve the radiation resistance of materials. The radiation resistance of the polymer is related to the molecular structure, molecular weight and aggregation state of the polymer, and the polymer which does not absorb some rays or generates photocrosslinking after absorbing the rays has good radiation resistance, such as polystyrene, polyethylene and the like. In contrast, polymers that decompose after irradiation are less radiation resistant, such as butyl rubber and the like. In addition, the prevention of the entry of rays or the quenching of excited free radicals caused by radiation is also an important means for improving radiation resistance, an intrinsic radiation-resistant polymer can be formed by introducing a stable structure into a polymer molecule, and a composite radiation-resistant material can be formed by adding a stabilizer into the polymer. Additives capable of performing the above functions include a light shielding agent, an excited state quencher, a photo-antioxidant and the like. The high molecular materials such as rubber and the like generate the breaking or crosslinking reaction of molecular chains after being irradiated by high-energy rays. The filler with good radiation resistance comprises: lead oxide, antimony pentasulfide, and preferred plasticizers include highly aromatic oils and dibutyl phthalate. Has the oxidation effect of radiation resistance on phenylenediamine anti-aging agents. The nuclear reactor radiation shielding protective clothing is used for nuclear reactor devices, aerospace devices, medical radiation shielding articles, protective clothing and the like.
Disclosure of Invention
The radiation-proof polymer filler used in the prior art is mostly toxic substances, such as lead oxide which can damage hematopoiesis, nerves, digestive systems and kidneys, and the invention provides a radiation-proof polymer composite material and a preparation method thereof in order to solve the problems of radiation-proof polymers in the prior art.
An anti-radiation polymer composite material comprises the following components in parts by weight: 100-110 parts of polyethylene; 3-6 parts of a foaming agent; 150-200 parts of barium sulfate; 0.8-1.2 parts of zinc oxide; 0.5-1 part of a cross-linking agent; 0.5-1 part of stearic acid; 20-25 parts of silver fibers.
The silver fiber material is selected because the shielding effect of the silver fiber material is stronger than that of a metal fiber radiation-proof material, and the silver also has the functions of sterilization, deodorization, static electricity prevention, ultraviolet ray and wear resistance.
Wherein the foaming agent is azodicarbonamide.
Wherein the cross-linking agent is dicumyl oxide.
The preparation method of the radiation-proof polymer composite material comprises the following steps: the first step is as follows: putting polyethylene, barium sulfate, zinc oxide, dicumyl peroxide, stearic acid and silver fiber into an internal mixer, and mixing for 10-30 minutes at the mixing temperature of 90-118 ℃; the second step: adding azodicarbonamide into the internal mixer, mixing for 2-5 minutes at 112-120 ℃, and discharging; the third step: setting the temperature of each section of the extruder to be 85-95 ℃, pouring the internally mixed materials into the extruder for plastication, and weighing the extruded mixed material according to the capacity of the die; the fourth step: and (3) placing the extruded material block into a primary foaming machine die for cross-linking foaming, wherein the foaming temperature is 150-160 ℃, the foaming time is 40-45 minutes, demoulding after foaming is finished, and naturally cooling to obtain the radiation-proof polymer composite material.
Compared with the prior art, the invention has the following advantages:
1. the radiation-proof polymer compound provided by the invention does not contain toxic heavy metal compounds, and is a safe radiation-proof material.
2. The radiation-proof polymer compound provided by the invention has the advantages of good radiation-proof effect, low cost and easiness in popularization.
3. The radiation-proof polymer compound provided by the invention is simple in preparation process.
Detailed Description
The following is a detailed description of the present invention, and the technical solutions of the present invention will be further described with reference to examples.
Example 1
The radiation-proof polymer composite material comprises the following components in parts by weight: 100 parts of polyethylene; 3 parts of azodicarbonamide; 150 parts of barium sulfate; 0.8 part of zinc oxide; 0.5 part of dicumyl peroxide; 0.5 part of stearic acid; and 20 parts of silver fibers.
The preparation method of the radiation-proof polymer composite material comprises the following steps: the first step is as follows: putting polyethylene, barium sulfate, zinc oxide, dicumyl peroxide, stearic acid and silver fibers into an internal mixer, and mixing for 15 minutes at the mixing temperature of 90 ℃; the second step is that: adding azodicarbonamide into the internal mixer, mixing for 3 minutes at 112 ℃, and discharging; the third step: setting the temperature of each section of the extruder to be 85 ℃, pouring the internally mixed materials into the extruder for plastication, and weighing the extruded mixed material according to the capacity of the die; the fourth step: and (3) placing the extruded material block into a primary foaming machine die for cross-linking foaming, wherein the foaming temperature is 150 ℃, the foaming time is 40 minutes, demoulding is carried out after foaming is finished, and naturally cooling is carried out to obtain the radiation-proof polymer composite material.
Example 2
The radiation-proof polymer composite material comprises the following components in parts by weight: 105 parts of polyethylene; 4.5 parts of azodicarbonamide; 175 parts of barium sulfate; 1 part of zinc oxide; 0.75 part of dicumyl peroxide; 0.75 part of stearic acid; 23 parts of silver fibers.
The preparation method of the radiation-proof polymer composite material comprises the following steps: the first step is as follows: putting polyethylene, barium sulfate, zinc oxide, dicumyl peroxide, stearic acid and silver fibers into an internal mixer, and mixing for 15 minutes at the mixing temperature of 110 ℃; the second step is that: adding azodicarbonamide into the internal mixer, mixing for 3 minutes at 115 ℃ and then discharging; the third step: setting the temperature of each section of the extruder to be 90 ℃, pouring the internally mixed materials into the extruder for plastication, and weighing the extruded mixture according to the capacity of the die; the fourth step: and (3) putting the extruded material block into a primary foaming machine die for cross-linking foaming, wherein the foaming temperature is 155 ℃, the foaming time is 43 minutes, demoulding is carried out after foaming is finished, and the anti-radiation polymer composite material is obtained after natural cooling.
Example 3
The radiation-proof polymer composite material comprises the following components in parts by weight: 110 parts of polyethylene; 6 parts of azodicarbonamide; 200 parts of barium sulfate; 1.2 parts of zinc oxide; 1 part of dicumyl peroxide; 1 part of stearic acid; and 25 parts of silver fibers.
The preparation method of the radiation-proof polymer composite material comprises the following steps: the first step is as follows: putting polyethylene, barium sulfate, zinc oxide, dicumyl peroxide, stearic acid and silver fibers into an internal mixer, and mixing for 15 minutes at the mixing temperature of 118 ℃; the second step is that: adding azodicarbonamide into the internal mixer, mixing for 3 minutes at 120 ℃, and discharging; the third step: setting the temperature of each section of the extruder to be 95 ℃, pouring the internally mixed materials into the extruder for plastication, and weighing the extruded mixture according to the capacity of the die; the fourth step: and (3) placing the extruded material block into a primary foaming machine die for cross-linking foaming, wherein the foaming temperature is 160 ℃, the foaming time is 45 minutes, demoulding is carried out after foaming is finished, and naturally cooling is carried out to obtain the radiation-proof polymer composite material.
The radiation-proof polymer composites of examples 1 to 3 were subjected to the performance test, and the results are shown in Table 1.
TABLE 1 EXAMPLES 1-3 examples 1-3 radiation protective Polymer composite Performance data
As can be seen from Table 1, the radiation shielding effectiveness of the composite materials in the examples is between 30 db and 50 db, and the composite materials all have good radiation protection effects.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (4)
1. The radiation-proof polymer composite material is characterized by comprising the following components in parts by weight:
100-110 parts of polyethylene;
3-6 parts of a foaming agent;
150-200 parts of barium sulfate;
0.8-1.2 parts of zinc oxide;
0.5-1 part of a cross-linking agent;
0.5-1 part of stearic acid;
20-25 parts of silver fibers.
2. The radiation protective polymeric composite material of claim 1, wherein said blowing agent is azodicarbonamide.
3. The radiation protective polymeric composite material of claim 1, wherein the cross-linking agent is dicumyl peroxide.
4. The preparation method of the radiation-proof polymer composite material according to claim 1, which is characterized by comprising the following steps:
the first step is as follows: putting polyethylene, barium sulfate, zinc oxide, a cross-linking agent, stearic acid and silver fibers into an internal mixer, and mixing for 10-30 minutes at the mixing temperature of 90-118 ℃;
the second step is that: adding a foaming agent into the internal mixer, mixing for 2-5 minutes at 112-120 ℃, and discharging;
the third step: setting the temperature of each section of the extruder to be 85-95 ℃, pouring the internally mixed materials into the extruder for plastication, and weighing the extruded mixture according to the capacity of a mold;
the fourth step: and (3) placing the extruded material block into a primary foaming machine die for cross-linking foaming, wherein the foaming temperature is 150-160 ℃, the foaming time is 40-45 minutes, demoulding is carried out after foaming is finished, and the anti-radiation polymer composite material is obtained after natural cooling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211013264.1A CN115160679A (en) | 2022-08-23 | 2022-08-23 | Radiation-proof polymer composite material and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211013264.1A CN115160679A (en) | 2022-08-23 | 2022-08-23 | Radiation-proof polymer composite material and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115160679A true CN115160679A (en) | 2022-10-11 |
Family
ID=83481789
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211013264.1A Pending CN115160679A (en) | 2022-08-23 | 2022-08-23 | Radiation-proof polymer composite material and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115160679A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116462889A (en) * | 2023-04-18 | 2023-07-21 | 泉州宝峰鞋业有限公司 | Anti-radiation graphene natural rubber composite foam material and preparation method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004168825A (en) * | 2002-11-18 | 2004-06-17 | Nishikawa Rubber Co Ltd | Rubber foamed material and method for producing the same |
| CN101042945A (en) * | 2006-07-20 | 2007-09-26 | 永州市健民射线防护设备有限公司 | Environment-friendly type radiation protection composite board |
| JP2017206645A (en) * | 2016-05-20 | 2017-11-24 | 株式会社ツーワン | Rubber composition excellent in radiation shielding property and flexibility |
| CN107793618A (en) * | 2017-10-19 | 2018-03-13 | 合肥朗胜新材料有限公司 | A kind of polyethylene foamed material and preparation method thereof |
| CN109181055A (en) * | 2018-07-24 | 2019-01-11 | 深圳市长园特发科技有限公司 | Radiant crosslinked polyethylene foam and its preparation method and application |
-
2022
- 2022-08-23 CN CN202211013264.1A patent/CN115160679A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004168825A (en) * | 2002-11-18 | 2004-06-17 | Nishikawa Rubber Co Ltd | Rubber foamed material and method for producing the same |
| CN101042945A (en) * | 2006-07-20 | 2007-09-26 | 永州市健民射线防护设备有限公司 | Environment-friendly type radiation protection composite board |
| JP2017206645A (en) * | 2016-05-20 | 2017-11-24 | 株式会社ツーワン | Rubber composition excellent in radiation shielding property and flexibility |
| CN107793618A (en) * | 2017-10-19 | 2018-03-13 | 合肥朗胜新材料有限公司 | A kind of polyethylene foamed material and preparation method thereof |
| CN109181055A (en) * | 2018-07-24 | 2019-01-11 | 深圳市长园特发科技有限公司 | Radiant crosslinked polyethylene foam and its preparation method and application |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116462889A (en) * | 2023-04-18 | 2023-07-21 | 泉州宝峰鞋业有限公司 | Anti-radiation graphene natural rubber composite foam material and preparation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN115160679A (en) | Radiation-proof polymer composite material and preparation method thereof | |
| CN100487821C (en) | Cable insulation material against nuclear circumstance | |
| CN101768362B (en) | Condensed room temperature vulcanized silicone rubber with radiation-resistant property and preparation method thereof | |
| DE1162072B (en) | Process for the production of molded articles or coatings from crosslinked, optionally foamed polyolefins | |
| Ratnam et al. | Evidence of irradiation‐induced crosslinking in miscible blends of poly (vinyl chloride)/epoxidized natural rubber in presence of trimethylolpropane triacrylate | |
| DE1144003B (en) | Extrudable or moldable, polyethylene-containing compositions | |
| CN103232627B (en) | Manufacture method of thermal contraction injection moulding | |
| US2961389A (en) | Process for modifying polymers and products obtained thereby | |
| US3888752A (en) | Phosphite ester antioxidants in radiation cured styrene butadiene elastomers | |
| CN109593260A (en) | Halogen-free flame-retardant thermal shrinkage material in a kind of nuclear island, halogen-free flameproof heat-shrinkable tube and preparation method thereof in nuclear island | |
| Hassan et al. | Synergistic effect of gamma radiation and peroxide on dynamic vulcanization of thermoplastic vulcanizes based on (devulcanized rubber)/polypropylene | |
| CN113929356B (en) | Flexible lead-free X-ray protection material and preparation method and application thereof | |
| US3734843A (en) | Irradiation of ethylene/vinyl acetate copolymers | |
| EP0093871B1 (en) | Dielectrically heatable polyolefin foam | |
| CN115232408A (en) | Anti-radiation ethylene propylene diene monomer composite material and preparation method thereof | |
| DE60021817T2 (en) | Crosslinkable polyethylene composition | |
| CN109438813A (en) | Nuclear island inner cable halogen-free flameproof external insulation material, cable outer insulation and preparation method | |
| Thevy Ratnam et al. | Effect of Electron Beam Radiation on the Mechanical Properties of Low‐Density Polyethylene (LDPE)/Waste Tire Dust (WTD) Blends | |
| Barlow et al. | Radiation processing of polyolefins and compounds | |
| CN107216487A (en) | A kind of high-temperature resistant rubber vulcanizing agent | |
| KR101320417B1 (en) | Methods for fabrication of the flame resistant radiation shields by using radiation crosslinking and the radiation shields thereby | |
| CN110483878B (en) | Radiation-resistant crosslinked ethylene-tetrafluoroethylene copolymer insulating material | |
| CN112625373B (en) | High heat-resistant electron beam sterilization-resistant medical hard PVC material and preparation method thereof | |
| DE102015119956B4 (en) | Ionizing radiation resistant polycarbonate resin composition and molding containing the same | |
| EP0417552A2 (en) | Method for stabilizing semi-finished or finished polymeric articles |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |